Read the texts between two confused friends at an empty concert venue. Choose the appropriate modal expression for each gap to complete their conversation.

Friend A: Where is everyone? The stage is completely empty. The band must have finished their set early and gone home!

Friend B: They couldn't have played yet. The tickets say the show starts at 9:00 PM, and it's only 8:30 PM right now!

Friend A: Oh no... do you think we might have come to the wrong venue?

Friend B: Let me check the ticket. Oh, oops. The concert is tomorrow.

The band must have finished their set early and gone home!

Friend A sees an empty stage and makes a strong logical deduction that the concert is over (must have + past participle).

They couldn't have played yet.

Friend B looks at the time and realizes it is impossible for the band to have played already (couldn't have + past participle).

...do you think we might have come to the wrong venue?

Friend A is guessing about a possible past mistake (might have + past participle).